/*
 * TazioStarter.java   ver    16 Nov 2009
 * 
 * Copyright (c) 2009 mentalsmash.org
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * The use of the Apache License does not indicate that this project is
 * affiliated with the Apache Software Foundation.
 */
package org.mentalsmash.tazio.impl;

import java.util.List;

import org.mentalsmash.tazio.Tazio;
import org.mentalsmash.tazio.cache.WRMCacheModule;
import org.mentalsmash.tazio.commons.CommonsModule;
import org.mentalsmash.tazio.commons.NodesNamer;
import org.mentalsmash.tazio.commons.TazioRuntimeException;
import org.mentalsmash.tazio.commons.timer.TimerModule;
import org.mentalsmash.tazio.net.ril.RemoteInvoker;
import org.mentalsmash.tazio.net.ril.impl.RILBaseImplModule;
import org.mentalsmash.tazio.net.ril.impl.WRMRILModule;
import org.mentalsmash.tazio.transactions.Share;
import org.mentalsmash.tazio.transactions.UserTransactionManager;
import org.mentalsmash.tazio.transactions.log.LogModule;
import org.mentalsmash.tazio.transactions.management.wrm.WRMTransactionManagementModule;
import org.mentalsmash.tazio.transactions.objects.RootSet;
import org.mentalsmash.tazio.transactions.objects.WRMObjectsModule;
import org.mentalsmash.tazio.transparency.configuration.WeakReplicaManagerModule;
import org.mentalsmash.tazio.transparency.interfaces.Resolver;

import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.inject.AbstractModule;
import com.google.inject.Guice;
import com.google.inject.Injector;

/**
 * @author Andrea Reale
 * @version 0.0.1
 * 
 */
public class WRMTazioStarter implements Tazio {

    private UserTransactionManager transactionManager;
    private Share aShare;

    private volatile boolean initialized;
    private final boolean local;

    private final String conf;
    
    public WRMTazioStarter(boolean local, String conf) {
	initialized = false;
	transactionManager = null;
	aShare = null;
	this.local = local;
	this.conf = conf;
    }

    @Override
    public Share getShare() {
	if (!initialized) {
	    throw new TazioRuntimeException("call initTazio() first");
	}
	return this.aShare;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.mentalsmash.tazio.Tazio#getTransactionManager()
     */
    @Override
    public UserTransactionManager getTransactionManager() {
	if (!initialized) {
	    throw new TazioRuntimeException("call initTazio() first");
	}
	return this.transactionManager;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.mentalsmash.tazio.Tazio#initTazio()
     */
    @Override
    public synchronized void initTazio() {
	if (!initialized) {

	    String name = NodesNamer.nextWRMName();

	    final List<AbstractModule> modules;
	    if (local) {
		modules = ImmutableList.of(new TimerModule(),
			new WRMTransactionManagementModule(name),
			new LogModule(), new WRMObjectsModule(),
			new WRMCacheModule(name),
			new WRMRILModule(name, local), new CommonsModule());
	    } else {
		modules = ImmutableList.of(new TimerModule(),
			new WRMTransactionManagementModule(name),
			new LogModule(), new WRMObjectsModule(),
			new WRMCacheModule(name),
			new WRMRILModule(name, local), new CommonsModule(),
			new WeakReplicaManagerModule(conf));
	    }
	    final Injector tazioInjector = Guice.createInjector(modules);

	    this.transactionManager = tazioInjector
		    .getInstance(UserTransactionManager.class);
	    this.aShare = tazioInjector.getInstance(Share.class);
	    

	    //this initializes the rootset in the cache system
	    // tazioInjector.getInstance(RootSet.class);

	    this.invoker = tazioInjector.getInstance(RemoteInvoker.class);

	    initialized = true;
	}
    }

    private RemoteInvoker invoker;

    public RemoteInvoker getRILInvoker() {
	return this.invoker;
    }


   



}
